Photographic-printing machine.



0 L.'HANSON.

PHOTOGBAPHIG PRINTING MAOHINE- APPLICATION FILED AUG. 4, 19131 Patented Mar. 24, 1914 4 SHEETS-SHEET 1.

v c. L. HANSON. PHOTOGBAPEIG PRINTING MACHINE. AIPLIUATIONIILED AUQA, 1913.

Pat ted Mar. 24, 1914 O. L. HANSON. PHOTOGBAPHICY PRINTING MACHINE.

APPLICATION FILED AUG. 4,-1913.

Patehted Max:2 1, 191;

4 SHEETS-SHEET 3.

0. L. HANSON. v PHOTOGRAPHIG PRINTING MACH/1N5.

APPLICATION TILED AUG. 4, I913.

Patented M21124, 1914 QM n 1 .ILJ Q 7 a Q 5 M srn'ras PATENT OFFICE.

cnmsruii HANSON, or mmn'naroms, mmrmsom.

' I PHOTQGRAPHIC-PBIN TIN Q MACHINE.

. Specification of Letters Patent. Patented 24 1914,

Application fled August 4, 1913. Serial No. 782,806.

To all whom it may concern .3

Be it known that I, CHRISTIAN L. liaissoN', a citizen of the United States, residmg at'Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Photothe claims.

' dicate like parts throughout the several views.

' Referring to the drawings, Figure 1 shows theimproved printing machine in front elevation, some portions being broken away; Fig. 2 isa fragmentary view in front elevation showin certain parts found atthe upper 'rightand portion of Fig. 1; Fig. 3

is a, view corresponding to Fig. 1 but illustrating different positionsof certain of the parts: Fig. 4 is an oblique section taken on the line an a of; Fig. 3; F ig'. 5 is a vertical section takenvv on the line :22 a of Fig. 3; Fig. 6 is an oblique section taken on the line w a: of'Fig. 1; Figs. 7 and 8 are oblique sections taken on the line :22 w of Fig. 1, some partsbeingbrokenaway; Figs. 9 and 10 are oblique plan views with some parts shown in diagram, showing particularly a .feed. escap'emen-t found 1n the vicinitv of the line markedzv w" on Fig. 1: Fig. 11 is adetail in section on line m" m of Fig.8; and Fig, 12 is a section on-line .01 of Fig. 1.

' machine, the printing frame, the negative holder, and various associatedparts are set '5' obliquely in a vertical plane, for certain important' reasons which will hereinafter appear. The said printingframe 1 is 9. rectangular, structure which, as shown, is directlv secured to an upright plate 2 which,

i 'in turn, is supported by a pedestal-like framework 3. A The plate 2' has a rectangu- In the accompanying drawings which illustrate the invention, like characters 'in-' Fig. 3

In this improved photographic printing lar tipening that alines with the rectangular;

opening in the printing frame 1 (see particularly. Fig. '5).

The negative 4 which, as shown, is formed in a glass plate, is directly held in the usual or in any "suitable way, by a' rectangular negative holder or frame 5. The numeral 6 indicates a mask ofpap er or other suitable material, shown as'applied'on the outer face of the negative and held to the negative holder 5 by any suitable means, as, for instance, by spring fingers 7 applied -to the said negative holder. The g uuneral 8 indicates'a card guiding rail which is alined with the oblique lower portion of the printing frame 1 and is rigidlysecured thereto butspaced apart therefrom, at its end, so that the'negative holder 5 and the lower edge of the mask 6 may be inserted between the said parts 1 and 8, as 76 best shown in Figs. 7 and 8, butalso indicated by dotted lines in Fig. .3 (see also F lgS. 5 and 6). The upper and.lower end vportions of the-negative holder5 are also arrangedto he slipped under the inwardly pro- 80 jecting end; of'the retaining bars 9- secured 'on the upper rail of the frame'l. Furthermore, the upper endortion of the negative holderis adapted to e slid under. the lower edge of a feed board 10, which latter is obliquely set in a vertical plane and is rigidly secured to the printing frame 1 and to the card guiding rail 8 (see Figs. 9 and 10).

As a simple'and eflicient means for frictionally clamping the oblique lower portion of the negative holder 5 against the bar 8, I

insert a clamping bar 11 into a suitable seat formed therefor in the printing frame 1 (see particularly F ig. 4 but also note dotted lines isreduced andformed with cam surface's that engage with small cam blocks 12 on the.

frame 1 and are subject to retaining springs 13 attached ...a t frame ,1.

The numeral 14 indicates a small lever see Fig. 3) pivoted to the frame 1 and hav- .ing its upper end engaged; with a notch in the clamping ,bar 11. By movements of the lever 14 the clamping bar 11 may be moved 106- endwise, and, under action of'the cam blocks 12, caused to clamp or release thenegative holder at will.

For'pressing the sensitized aper or card against the negative, I provi e a platen 'or 110 At its ends,'the clamping bar 11 96' their outer ends to the i 100 presser board 15, the lower edge of which is set against the inclined upper edge of the guide bar 8, so that the said platen is set obliquely in a vertical plane and is alined with the negative holder and the rectangular opening in the frame 1. This platen 15 is "carried by a plunger 16 mountedfor sliding movements through a. supporting'bar 17. -There should be a yielding movement between the platen and plunger to insure even pressure on the negative, and for certain other reasons, and this is conveniently accomplished by providing the inner end of the plunger. 16 with a plate-like head 18, that is loosely connected to the platen by screws 19, and interposing bowed springs 20 between the said platen and head (see particularlyFigs. 1 and 6).

-At its upper end, the supporting bar 17.

is pivotally connected to a stud 21 secured on the upper portion of the frame 1. -At its free lower end, said bar 17 is normally seated in the notch of a stop lug 22 secured on the lower portion of bar 8. The lower end of said bar 17 is thus held in working position against outward lateral movement, but may at any time be lifted off of the lug 22, carrying the platen withit.- Fig. 3 shows the bar 17 and platen turned into an extreme upper and inoperative position with the said bar resting against a stop 23 on the -uppep portion of the frame 1;

For moving the platen toward and from the negative, a lever 24 is intermediately pivoted to a lug'25 on the bar 17 and, at its inner end, has a sliding pivotal connection to the plunger 16. The other end of said lever 24 normally engages between the pronged end of a lever 26 that is pivoted to a bearing. 27 on the lower end of the ,guide bar 8. Preferably, the lever 24 has a laterally olfset roller for direct engagement with the pronged end of the lever 26. The other end of the lever 26 is pivotally connected to the lower end by. a long oblique link 28, the upper end of which is pivoted at 29 to a crank head 30 which, in turn, is journaled to bearings 31, shown secured to and depending from theupper end portion of-the bar 8. The crank head 30 is provided with an operating handle32.

It should have been noted that the platen 15 is provided with a laterally projecting 8 and against the upright feed board 10.

and with the lower edge thereof engaging with and stopped'by a so-called feed escapement dog 35. This dog 35, as shown, is pivoted on a stud'36 and a bracket 37 secured on the bar 8, and is provided with a weighted arm 38 which yieldin'gly holds the free end of said dog against the feed board 10. The numeral 39 indicates a dog releasing lever (see Figs. 9 and 10), which is intermediately pivoted to the noted bracket 37. One end of this lever 39 is engageable with a projection 35 of the feed dog 35, and the other'end thereof is arranged tobe engaged by the platen when the latter is'moved outward.

At the lower end of the platen is a socalled discharge escapeinent having a novel and peculiar action and, as preferably constructed, involving the following details, which details are best shown in Figs. 1,7 35 and 8:Of these parts, the-numeral 4O 1ndioates an escapement arm pivotally attached .to the lower end of the platen 15, at its upper end, and provided, at its free end, with a segmental portion 41 formed with ratchet teeth 42 on its inner edge. Said arm 40 also preferably has an applied weight 43. To the end-of the segmental portion 41 of the said arm is attached an escapement head 44, preferably of some light material, such as wood, which will normally be gravity held against the negative or its mask, so that it will prevent a card y, which has been slid by gravity on the guide bar 8 between the platen and negative, from passing on downward and into the catch box. Hence, this head 44afi'ordsa stop for intercepting the card and stopping the same in position for printing:

The numeral 45 indicates a gravityoperated latch which is pivoted to a supporting bracket 46 on the lower end of the platen, and normally engages the ratchet teeth 42.

= This latch 45, when the platen is moved toward the negative, will slip over the teeth 42, and, when the platen is retracted or moved away from the negative, will cause the arm 40 and-head 44 to move with the platen and thereby release the printed card 7 and permit the same to slide, under action 115,

of gravity, downward on the bar'8 and into the catch box 34.

For releasing the' latch. 45, after -the printed card has been permitted to drop, and thereby permitting the arm 40 to move the escapement head 44 back against the negative or mask before thelnext card has been. released by the feed dog or escapement 35,

I provide the crooked tripping lever 47 which is intermediately pivoted to the 1 bracket 46, with its upper end immediately underlying the said latch and with its other end in position to be forced against the supporting bar 117, when the platen nearly reaches theoutermost position away from "just in adyancef bf towar attains the negative, and at a time just before the platen strikes the tripping lever '39, to reease'the feed dog 35.

The upper surface of the guide bar 8 ,is preferab y made slightly concave in cross section, so that the cards, in passing over the same, will be carried'away from' the negative and, hence, move under less friction.

Also, this channel formof the bar insures more' accurate alinement of the card with the negative, when it is pressed by the platenand against the negative.

A light for printing may be furnished by difierent sources. In some instancesit may be da light. Where artificial light is enaploye it may be from an electr1c lamp or" from an oil burnin 'lamp, and it isthis latter arrangement t at is illustrated in the drawings. As shown in Fig. 5, the numeral 48 indicates a lamp chamber in which is the suitable lam 49. In this lamp chamber, between the amp and the board 2, to which the said lamp chamber is applied, is a sheet I metal partition 50.having alight passage that is adapted to be opened and closed by a shutter 51 (see also Fig. '3), which shutter is carried by the end of an arm'52 secure to a short rock shaft 53 e. Fig. 3). The

forwardly projecting fro t end of the shaft 53 has a short arm 54 connected by a slot and pin coupling 55 to the lower end ofa link 56, the upper end of which is pivoted'at 57 to the crank head 30 already described.

The actionsof the various parts have al-' ready been described, but the relative timing thereof may be briefly summed .up in the following statement n" r downwardmo've ment of the. operatin handle 32, the shutter 51 will remain in a c osed position while the platen is being moved to press the card against the negative; and a subsequent downward movement of the said; handle, to wit, from the broken line position to the dotted line position (Fig. 1), will move the shutter into open position, and will compress the platen'sprlngs 20. Whenthe handle 32 is in the lowermost osition, Slim: by full lines in Fig. 2, and by dotted li in Fig. 1, the pivot 29 of the link 28 is thrown below a dead center, so-that the platen "will then be locked in a position to hold the card ior print against the negative. ,Under upward movement of the operating handle .32, from its dotted line t its broken line position (Fig.1), the shutter 51 will be closed,

and further upward movement of the said handle iwill cause the platen to be retractedand the printed card to be released; The feed dog or escapement 35 is retracted while the handle 32 is being moved upward from its broken line to its dotted line position- 1 I (Fig. '2)"; and, as already stated, the discharge escapementi's -released by the platen segments-=- h'aving an oblique card guide erelease of. thegsaid position, a platen supported by said bar, and platen operating connections.

1. The comb'nation with a netgative-holder oblique guide bar or directin cards between said 3. The combination with a prmting frame I having an', oblique card guide bar, of a negative holder applied to said printing frame adjacent to said guide bar, 'a platen supporting bar movable to and from an operative position, a platen supported by said bar, an platen operating connections, including a crank head havin an operating head and movable from one side to another from a dead center and serving, in one position to hold the said platen pressed toward said negative holder.

4. The combination with a printing frame tive holder applied to said printingframe adjacent to said guide. bar, a platen supporting bar movable to and from an operative position, a platen supported by said bar, and plated operating connections, including parts that are moved into andout of operative connection by movements of said platen supporting bar. a

5. The combination with a printing frame having an oblique card guld'e bar, of a negative holder applied to said printing frame adjacent to. said guide bar,'a platen supporting bar movable to and from an operative position, a platen supported by said bar, and platen operating connections, the said platen operating connections including. parts that are inoved into and out of operativ'e connection by movements of said platen supporting bar.

I 6. The combination wlth-a printing frame having an oblique card guide bai', of a nega- I tive holder applied to said' printing frame adjacent to aid guide bar, a platen supporting bar movable to and from an operative position, 'a platen supported by said bar, platen operating connections, and -a light controlling shutter operated with a properly timed action by said platen operating connections. 7 The combination with a: negative handle, and a link con-necte to said crank ar, of. a negafie holder and ii. support therefor, of a platen supporting bar pivoted at itsupper end and normally held in an operative position against a fixed stop, a platen mounted on said plat en supporting bar and movable toward and from said negativeholder, and platen operatin connectlons.

8. The combination with a negative holder and a support therefor, of a platen supporting bar pivoted .at its upper end and normally held in an operative position against a fixed stop, a platen mounted on said platen supporting bar and movable toward and from said negative holder, and platen operating connections, including a yielding spring element.

9. The combination with a negative holder and a upport therefor, of a platen supporting bar pivoted at its upper end and normally held in an operative position against a fixed stop, a platen mounted on said platen supporting bar and movable toward and from said negative holder, platen operating connections, and feed and discharge escapements controlling the delivery of cards between said platen and negative holder and arranged to be operated by the said platen operating connections with properly timed actions.

10. The combination with a negative holder and a support therefor, of a platen supporting bar pivoted at its upper end and normally held in an operative position against a fixed stop, a platen mounted on said platen supporting bar and movable toward and from said negative holder, platen operating connections, including a yielding spring element, and feed and discharge escapements controlling the delivery of cards between said platen and negative holder and arranged to be operated by the said platen operating connections with properly timed actions. I 1 11. The combination with a negative holder and a support therefor, of a platen supporting bar. pivoted at its upper end and normally held in an operative position against a fixed stop, a platen mounted on said platen supporting bar and movable toward and fromsaid negative holder, platen operating connections, including a yielding spring element, and a light controlling shutter arranged to be operated by said platen operating connections, during a time when the yielding elements thereof is under compression and-the platen is heldagainst said negative holder.

12. The combination with a negative holder and a support therefor, of means for guidingacards between said platen and negative holder, a platen supporting bar pivoted to said support at its upper end and normally held against the fixed stop on said support, a lever intermediately pivoted to said platensupporting. bar and connected at one end to said platen, an intermediate lever on the said support detachably engageable with the other end of the lever on guiding cards between said platen and negative holder, a platen supporting bar pivoted to said support at its upper end and normally held against the fixed stopon said support, a lever. intermediately pivoted to said platen supporting bar and connected at one end to said platen, an intermediate lever on the said support detachably engageable with the other end of the lever on said platen supporting bar, a link connected to said intermediate lever at one end, a crank head connected to the other end of saidv link and having an operating handle, and a light controlling shutter having an operating connection controlled by said crank head to move said shutter with a properly timed action in respect to said platen.

14. The combination with a negative holder and a support therefor, of means for guidi cards between said platen and negative holder, a platen supporting bar pivoted to said support at its upper end and normally held against the fixed stop on said support, a lever intermediately pivoted to said platen supporting bar and connected at one end to said platen, an intermediate lever on the said support detachably engageable with the other end of the lever on said platen supporting bar, a link connected to said intermediate lever at one end, a crank head connected to the other end of said link and having an operating handle, and feed and dis'char e escapements actuated by movements 0 said platen.

15. The combination with a negative holder and a support therefor, of a platen movable toward and from the said negative holder, platen operating connections, a dis-' charge escapement for controlling the discharge of' printed cards from between the said platen and negative holder, said escapement comprising a lever pivoted to said platen and provided with a segmental free' end portion having ratchet teeth, a 'stop head, a retaining dog operated on the said ratchet teeth to retract the said lever when the platen is retracted, and means for releasing said retaining dog, approximately at the limit of the movement of said platen away from said negative holder, andthereby, at such time, releasing said escapement lever and permitting the same to again. become operative. I 1 I 16. The combination with a printing frame and a card guiding bar secured in respect thereto, the said bar being spaced from said frame to permit a negative, holder to be inserted between the same, of aclamping bar applied to said printing frame and I to control the delivery of cards between said alined with .said guide bar and operated to platen and negative holder, and a catch box clamp said negative holder against said bar, having an open side located at the lower end substantially as described. v of said oblique guide bar for receiving the 15 17 The combination with a negative I printed cards.

holder and a cooperating platen, of an In testimony whereof I aflix my signature oblique guide bar for directing cards be- I in presence of two witnesses.

tween said platen and negative holder, a vCHRISTIAN L. HANSON.

platen operating device, and feed and dis- 1 Witnesses:

charge escapements operated with a properly I Bnnmon G. WHEELER, timed action by said platen operating device, HARRY D. KILGoRE. 

